Fish from sparkling, pristine waters? Not likely, no matter where you buy your fish today. Yes, even tiny, bottom-of-the-food-chain sardines pose a health risk .
So, what’s a health conscious, environmentally conscious person to do?
1- Avoid seafood, if possible.
3- Limit your fish consumption (this amount varies for pregnant women and children, and on an individual basis). See this USDA tip-sheet  for some basic guidelines, then modify to a slightly more conservative amount.
4- While this won’t solve contamination problems entirely, I recommend consuming fish with chelating foods and/or beverages like green tea. These foods encourage the body’s detoxification of heavy metals by binding them, thereby making them easier to excrete. For a list of more chelating foods, click here . Overdoing chelating foods comes with its own set of problems (like nutrient deficiencies) — remember that moderation is key.
6- Shop ONLY for fish that appear on BOTH sustainability AND low contaminant lists! Vital Choice Seafood  strives to offer seafood that meets both requirements.
7- Choose a molecularly distilled fish oil that has been IFOS certified .